Fixes and optimizations for 32-bit sparc fabs*().

6 files changed, 72 insertions, 13 deletions

diff --git a/ChangeLog b/ChangeLog
index 411381e..0afcbc9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2011-09-05  David S. Miller  <davem@davemloft.net>
+
+	* sysdeps/sparc/sparc32/fpu/s_fabsf.S: Use first argument
+	stack slot, rather than the struct return pointer slot.
+	* sysdeps/sparc/sparc32/fpu/s_fabs.c: Delete.
+	* sysdeps/sparc/sparc32/fpu/s_fabs.S: New file.
+	* sysdeps/sparc/sparc32/sparcv9/fpu/s_fabs.S: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/fpu/Implies: Likewise.
+
 2011-09-05  Ulrich Drepper  <drepper@gmail.com>
 
 	[BZ #13144]
diff --git a/sysdeps/sparc/sparc32/fpu/s_fabs.S b/sysdeps/sparc/sparc32/fpu/s_fabs.S
new file mode 100644
index 0000000..425fab4
--- /dev/null
+++ b/sysdeps/sparc/sparc32/fpu/s_fabs.S
@@ -0,0 +1,29 @@
+/* Float absolute value, sparc32 version.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+ENTRY (__fabs)
+	st	%o0, [%sp+72]
+	st	%o1, [%sp+76]
+	ldd	[%sp+72], %f0
+	retl
+	 fabss	%f0, %f0
+END (__fabs)
+weak_alias (__fabs, fabs)
diff --git a/sysdeps/sparc/sparc32/fpu/s_fabs.c b/sysdeps/sparc/sparc32/fpu/s_fabs.c
deleted file mode 100644
index b883e6e..0000000
--- a/sysdeps/sparc/sparc32/fpu/s_fabs.c
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <math.h>
-#include <math_ldbl_opt.h>
-
-double __fabs (double x)
-{
-  return __builtin_fabs (x);
-}
-weak_alias (__fabs, fabs)
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
-compat_symbol (libm, __fabs, fabsl, GLIBC_2_0);
-#endif
diff --git a/sysdeps/sparc/sparc32/fpu/s_fabsf.S b/sysdeps/sparc/sparc32/fpu/s_fabsf.S
index e148724..b233c62 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fabsf.S
+++ b/sysdeps/sparc/sparc32/fpu/s_fabsf.S
@@ -21,8 +21,8 @@
 #include <sysdep.h>
 
 ENTRY (__fabsf)
-	st	%o0, [%sp+64]
-	ld	[%sp+64], %f0
+	st	%o0, [%sp+68]
+	ld	[%sp+68], %f0
 	retl
 	 fabss	%f0, %f0
 END (__fabsf)
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/s_fabs.S b/sysdeps/sparc/sparc32/sparcv9/fpu/s_fabs.S
new file mode 100644
index 0000000..547840e
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/s_fabs.S
@@ -0,0 +1,29 @@
+/* Float absolute value, sparc32+v9 version.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+ENTRY (__fabs)
+	st	%o0, [%sp+72]
+	st	%o1, [%sp+76]
+	ldd	[%sp+72], %f0
+	retl
+	 fabsd	%f0, %f0
+END (__fabs)
+weak_alias (__fabs, fabs)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/fpu/Implies b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/fpu/Implies
new file mode 100644
index 0000000..70568c5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/fpu/Implies
@@ -0,0 +1,3 @@
+# We must list this here to move it ahead of the ldbl-opt code.
+sparc/sparc32/sparcv9/fpu
+sparc/sparc32/fpu